User:Scott DNA/sandbox/Maserati biturbo engine

The Maserati V6 Biturbo engine was a family of twin-turbocharged, 90° V6 petrol engines designed and produced by Maserati between 1981 and 2001. Introduced as a carbureted engine featuring SOHC heads and three valves per cylinder, it was then evolved with electronic fuel injection, twin intercoolers, DOHC heads and four valves per cylinder.

Debuting in 1981 with the Maserati Biturbo, it was the first ever production engine with two turbochargers and the first ever production engine with multi-valve heads featuring turbocharging. A DOHC 36-valve (6 valves per cylinder) variant was developed but never manufactured.

The Biturbo V6 family spawned three different displacement: 1996 cc, 2491 cc and 2790 cc.